5.8.40.0/23

ip:	5.8.40.0 subnet.reserved.ispsystem.net
loc:	United States, Miami (Florida)  
isp:	AS202422 G-Core Labs S.A. » G-Core Labs S.A. » GCL Customer MI 1.245 ms
route:	5.8.40.0/23, LU-GCORELABS-20120425 - G-Core Labs S.A., US (Miami) ... 
reg:	5.8.40.0/23, LU, RIPE, 2012-04-25
addr:	  2-4 rue Edmond Reuter L-5326 Contern LUXEMBOURG
online:	  43 » latency: 119 ms (119ms) 

see also:
   5.8.40.0/24      AS202422  GCL-CUSTOMER-MI G-Core Labs Customer assignment, US
   5.8.41.0/24      AS202422  GCL-CUSTOMER-US G-Core Labs Customer assignment, US